NEXCOM NViS 2310 - Manual (Page 69)

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Appendix C: Signal Connection of DI/DO
NViS2310 User Manual
Dry Contact:
Digital Input
CN14 connector for GPI signal (digital signal input)
The CN14 has 4 digital input channels by default.
Wet Contact (default)
The GPI signals have a pull up resistor to 5V internally.
The figure below shows how to connect an external output source to one
of the input channel.
External Internal
GPIO1
GPI5
GPI6
GPIO2
GPIO7
GPI4
GPIO8
GPIO3
GPIO_GND
CN14
9
10
11
12
13
14
15 7
16
VCC5
6
11
5
12
4
13
1K 1K
External Internal
GPIO1
GPI5
GPI6
GPIO2
GPIO7
GPI4
GPIO8
GPIO3
GPIO_GND
CN14
9
10
11
12
13
14
15 7
16
Resistor
External power
External
Switch
Port
GPI
Register
ON (Short) GND 0
OFF (Open) OPEN 1
External
Switch
Port
GPI
Register
ON (Short) GND 0
OFF (Open) HIGH 1